[API] Get favcion of a site.

fapi.php

<?php 
$url = @$_GET['url'];
if($url) {
  $url = preg_replace('/http\:\/\//i', '', $url);
  $url = 'http://' . $url;
  $domain = parse_url($url);
  $url = $domain['host'];
  $dir = 'fcache';
  $dfav = $dir . "/default.ico";
  $fav = $dir . "/" . $url . ".ico";
  header('Content-type: image/png');
  $file = @file_get_contents($fav);
  if($file) {
    echo $file;
    exit;
  }
  $file = @file_get_contents("http://$url/favicon.ico");
  if($file) {
    $f2 = $file;
    echo $f2;
  } else {
    $w = @file_get_contents("http://$url/", 0, null, 0, 2000);
    //@preg_match('|<link rel=\"shortcut icon\" href=\"(.*?)\".*>|ius',$w,$a);
    @preg_match('|href=\"(.*?)\.ico\"|i', $w, $a);
    if($a[1]) {
      $a[1] .= '.ico';
      $f = @file_get_contents($a[1]);
      if($f) {
	echo $f;
      } else {
	$u = 'http://' . $url . '/' . $a[1];
        $f2 = @file_get_contents($u);
	if($f2) {
	  echo $f2;
	} else {
	  $f2 = @file_get_contents($dfav);
          echo $f2;
	}
    }
  } else {
    $f2 = @file_get_contents($dfav);
    echo $f2;
  }
}

if($f2)
  @file_put_contents($fav,$f2);
} else {
  header("Content-Type:text/html;charset=utf-8");
  echo 'This is a favcion api.';
}
?>